On the sustainability of web systems evolution

In the last twenty years, the evolution of web systems has been driven along three dimensions: the processes used to develop, evolve, maintain and re-engineer the systems themselves; the end products (the pages, content and links) of such processes; and finally the people dimension, with the extraordinary shift in how developers and users shape, interact and maintain the code and content that they put online. This paper reviews the questions that each of these dimensions has addressed in the past, and indicates which ones will need to be addressed in the future, in order for web system evolution to be sustainable. We show that the study on websites evolution has shifted from server- to client-side, focusing on better technologies and processes, and that the users becoming creators of content open several open questions, in particular the issue of credibility of the content created and the sustainability of such resources in the long term

Guidance on the principles of language accessibility in National Curriculum Assessments : research background

This review accompanies the document, which describes the principles which should guide the development of clear assessment questions. The purpose of the review is to present and discuss in detail the research underpinning these principles. It begins from the standpoint that National Curriculum assessments, indeed any assessments, should be: - appropriate to the age of the pupils - an effective measure of their abilities, skills and concept development - fair to all irrespective of gender, language, religion, ethnic or social origin or disability. (Ofqual, 2011) The Regulatory Framework for National Assessments: National Curriculum and Early Years Foundation Stage (Ofqual, 2011) sets out a number of common criteria which apply to all aspects of the development and implementation of National Assessments. One of these criteria refers to the need for assessment procedures to minimise bias: “The assessment should minimise bias, differentiating only on the basis of each learner’s ability to meet National Curriculum requirements” (Section 5.39, page 16). The Framework goes on to argue that: “Minimising bias is about ensuring that an assessment does not produce unreasonably adverse outcomes for particular groups of learners” (Annex 1, page 29). This criterion reinforces the guiding principle that any form of assessment should provide information about the knowledge and understanding of relevant content material. That is to say that the means through which this knowledge and understanding is examined, the design of the assessment and the language used should as far as possible be transparent, and should not influence adversely the performance of those being assessed. There is clearly a large number of ways in which any given assessment task can be presented and in which questions can be asked. Some of these ways will make the task more accessible – that is, easier to complete successfully – and some will get in the way of successful completion. Section 26 of the Fair Access by Design (Ofqual, 2010) document lists a number of guiding principles for improving the accessibility of assessment questions, although the research basis for these principles is not made completely clear in that document. The aim of the current review is to examine the research background more closely in order to provide a more substantial basis for a renewed set of principles to underpin the concept of language accessibility. In the review, each section will be prefaced by a statement of the principles outlined in Guidance on the Principles of Language Accessibility in National Curriculum Assessments and then the research evidence underpinning these principles will be reviewed

Exploiting the user interaction context for automatic task detection

Detecting the task a user is performing on her computer desktop is important for providing her with contextualized and personalized support. Some recent approaches propose to perform automatic user task detection by means of classifiers using captured user context data. In this paper we improve on that by using an ontology-based user interaction context model that can be automatically populated by (i) capturing simple user interaction events on the computer desktop and (ii) applying rule-based and information extraction mechanisms. We present evaluation results from a large user study we have carried out in a knowledge-intensive business environment, showing that our ontology-based approach provides new contextual features yielding good task detection performance. We also argue that good results can be achieved by training task classifiers `online' on user context data gathered in laboratory settings. Finally, we isolate a combination of contextual features that present a significantly better discriminative power than classical ones

A Computer-Based Method to Improve the Spelling of Children with Dyslexia

In this paper we present a method which aims to improve the spelling of children with dyslexia through playful and targeted exercises. In contrast to previous approaches, our method does not use correct words or positive examples to follow, but presents the child a misspelled word as an exercise to solve. We created these training exercises on the basis of the linguistic knowledge extracted from the errors found in texts written by children with dyslexia. To test the effectiveness of this method in Spanish, we integrated the exercises in a game for iPad, DysEggxia (Piruletras in Spanish), and carried out a within-subject experiment. During eight weeks, 48 children played either DysEggxia or Word Search, which is another word game. We conducted tests and questionnaires at the beginning of the study, after four weeks when the games were switched, and at the end of the study. The children who played DysEggxia for four weeks in a row had significantly less writing errors in the tests that after playing Word Search for the same time. This provides evidence that error-based exercises presented in a tablet help children with dyslexia improve their spelling skills.Comment: 8 pages, ASSETS'14, October 20-22, 2014, Rochester, NY, US

The onus on us? Stage one in developing an i-Trust model for our users.

This article describes a Joint Information Systems Committee (JISC)-funded project, conducted by a cross-disciplinary team, examining trust in information resources in the web environment employing a literature review and online Delphi study with follow-up community consultation. The project aimed to try to explain how users assess or assert trust in their use of resources in the web environment; to examine how perceptions of trust influence the behavior of information users; and to consider whether ways of asserting trust in information resources could assist the development of information literacy. A trust model was developed from the analysis of the literature and discussed in the consultation. Elements comprising the i-Trust model include external factors, internal factors and user's cognitive state. This article gives a brief overview of the JISC funded project which has now produced the i-Trust model (Pickard et. al. 2010) and focuses on issues of particular relevance for information providers and practitioners

Accessibility and Aldus@SFU: Exploring multiple avenues of access for digital exhibits and academic research

This report analyzes four different avenues of accessibility as they pertain to digital exhibits and academic research. Using Simon Fraser University’s Aldus@SFU Digitized Collection as a case study, this report looks at accessibility through the avenues of digitization, openness, publicness, and functionality to break down the current and future needs of diverse audiences. While accessibility is a complex topic, this report breaks down the needs of several different user groups and outlines what can be done to fulfill those needs and create content that is universally available and accessible